Door-bell



(No Model.)

T. M. BALES.

DOOR BELL.

No. 372,590. Patented Nov. I 1887.

' WITNESSES .dttorney STATES I UNITE ATENT OFFrcE.

THOMAS M. BALES, OF DUBLIN, ASSIGNOR OF ONE -HALF TO WILLIAM F. MEDSKER, OF CAMBRIDGE CITY, AND JAMES F. HATFIELD, OF DUBLIN,

INDIANA.

BELL.

SPECIFICATION forming part of Letters Patent No. 372,590, dated November 1, 1887.

. Application filed March 16, 1887.

T aZZ whom, it may concern..-

Be it known that I, THOMAS M. BALES, a citizen of the United States, and a resident of Dublin, in the county of \Vayne and State of Indiana, have invented certain new and useful Improvements in Door-Bells; and I dodeelare the following to be a full, clear, and exact description pf the invention, such as will enable others skilled in he art to which it appertains IO to make and use the same, reference being had to the accompanying drawings, and to letters or figures of referent-e marked thereon, which form a part of this specification.

Figure l is a plan view 0t my improved doorhell with the cover or gong in place. Fig. 2 is a plan view of the improvement, the cover being removed to show the internal construction. Fig. 3 is a detail view of the cam A, showing also the engagement with the hammer B.

My invention relates to door bells; and it consists in the construction and novel combination of parts, as hereinafter set forth.

Referring by letter to the accompanying drawings, I designates a base of metal 0r of wood, as maybe preferred, said base being provided at its upper and lower ends with lugs or pins H, which are designed to assist in holding the cap, cover, outer bell, or'gong, S,

0 in place.

O is a boss, against which the outer gong, S, and the inner wire gong, E, are held by a headed screw, L. The hammer-armD is made integral with the wire gong E, extends up 55 therefrom, and is provided with a hammer or head, B, having a shoulder or stop, J, which engages the toothed cam A on the knob-spindle of the bell or alarm. The hammer'arm D Serial No. 231,145. (No model.)

strikes the wire gong E when the knob-spindle and toothed cam are rotated in the proper direction. The hammer-arm D is provided with an auxiliary hammenarm, G, having a hammer or head, F, at its outer end, which head F strikes the bell-gong S at the same time that the hammer B strikes the wire gong E.

The outer hell or cover is preferably highly ornamented around its base, and the latter is provided with openings or holes K, which are sprung over the lugs or pins H.

When the knob is turned in the direction of the arrows, the toothed cam operates the hammers and causes them to strike both the wire gong and the bellgong at the same time. \Vhen, however, the knob is turned in the wrong direction, the hammers will not strike the gongs.

Having described this invention, what I claim, and desire to secure by Letters Patent, 1s

The combination, with the base I, of the central boss, 0, secured thereto, the bell gong S, and wire gong E, connected to the central boss by a screw passing into the base I, said wire gong being provided with a shouldered hammerhead, B, in engagement with the toothed cam A on the knob-spindle, and the auxiliary hammer connected to the main hammer-arm, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS M. BALES.

\Vitnesses:

FRANK O. MOSBAYL, SAM. H. HosHoUR. 

